Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 350 insertions, 0 deletions

diff --git a/drivers/video/hitfb.c b/drivers/video/hitfb.c
new file mode 100644
index 0000000..0d376ba
--- /dev/null
+++ b/drivers/video/hitfb.c
@@ -0,0 +1,350 @@
+/*
+ * linux/drivers/video/hitfb.c -- Hitachi LCD frame buffer device
+ *
+ * (C) 1999 Mihai Spatar
+ * (C) 2000 YAEGASHI Takeshi
+ * (C) 2003, 2004 Paul Mundt
+ * (C) 2003, 2004 Andriy Skulysh
+ *
+ *  This file is subject to the terms and conditions of the GNU General Public
+ *  License. See the file COPYING in the main directory of this archive for
+ *  more details.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/tty.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/fb.h>
+
+#include <asm/machvec.h>
+#include <asm/uaccess.h>
+#include <asm/pgtable.h>
+#include <asm/io.h>
+#include <asm/hd64461/hd64461.h>
+
+#ifdef MACH_HP600
+#include <asm/cpu/dac.h>
+#include <asm/hp6xx/hp6xx.h>
+#endif
+
+#define	WIDTH 640
+
+static struct fb_var_screeninfo hitfb_var __initdata = {
+	.activate	= FB_ACTIVATE_NOW,
+	.height		= -1,
+	.width		= -1,
+	.vmode		= FB_VMODE_NONINTERLACED,
+};
+
+static struct fb_fix_screeninfo hitfb_fix __initdata = {
+	.id		= "Hitachi HD64461",
+	.type		= FB_TYPE_PACKED_PIXELS,
+	.ypanstep	= 8,
+	.accel		= FB_ACCEL_NONE,
+};
+
+static u32 pseudo_palette[16];
+static struct fb_info fb_info;
+
+static inline void hitfb_accel_wait(void)
+{
+	while (fb_readw(HD64461_GRCFGR) & HD64461_GRCFGR_ACCSTATUS) ;
+}
+
+static inline void hitfb_accel_start(int truecolor)
+{
+	if (truecolor) {
+		fb_writew(6, HD64461_GRCFGR);
+	} else {
+		fb_writew(7, HD64461_GRCFGR);
+	}
+}
+
+static inline void hitfb_accel_set_dest(int truecolor, u16 dx, u16 dy,
+					u16 width, u16 height)
+{
+	u32 saddr = WIDTH * dy + dx;
+	if (truecolor)
+		saddr <<= 1;
+
+	fb_writew(width, HD64461_BBTDWR);
+	fb_writew(height, HD64461_BBTDHR);
+
+	fb_writew(saddr & 0xffff, HD64461_BBTDSARL);
+	fb_writew(saddr >> 16, HD64461_BBTDSARH);
+
+}
+
+static inline void hitfb_accel_solidfill(int truecolor, u16 dx, u16 dy,
+					 u16 width, u16 height, u16 color)
+{
+	hitfb_accel_set_dest(truecolor, dx, dy, width, height);
+
+	fb_writew(0x00f0, HD64461_BBTROPR);
+	fb_writew(16, HD64461_BBTMDR);
+	fb_writew(color, HD64461_GRSCR);
+
+	hitfb_accel_start(truecolor);
+}
+
+static inline void hitfb_accel_bitblt(int truecolor, u16 sx, u16 sy, u16 dx,
+				      u16 dy, u16 width, u16 height, u16 rop,
+				      u32 mask_addr)
+{
+	u32 saddr, daddr;
+	u32 maddr = 0;
+
+	fb_writew(rop, HD64461_BBTROPR);
+	if ((sy < dy) || ((sy == dy) && (sx <= dx))) {
+		saddr = WIDTH * (sy + height) + sx + width;
+		daddr = WIDTH * (dy + height) + dx + width;
+		if (mask_addr) {
+			if (truecolor)
+				maddr = ((width >> 3) + 1) * (height + 1) - 1;
+			else
+				maddr =
+				    (((width >> 4) + 1) * (height + 1) - 1) * 2;
+
+			fb_writew((1 << 5) | 1, HD64461_BBTMDR);
+		} else
+			fb_writew(1, HD64461_BBTMDR);
+	} else {
+		saddr = WIDTH * sy + sx;
+		daddr = WIDTH * dy + dx;
+		if (mask_addr) {
+			fb_writew((1 << 5), HD64461_BBTMDR);
+		} else {
+			fb_writew(0, HD64461_BBTMDR);
+		}
+	}
+	if (truecolor) {
+		saddr <<= 1;
+		daddr <<= 1;
+	}
+	fb_writew(width, HD64461_BBTDWR);
+	fb_writew(height, HD64461_BBTDHR);
+	fb_writew(saddr & 0xffff, HD64461_BBTSSARL);
+	fb_writew(saddr >> 16, HD64461_BBTSSARH);
+	fb_writew(daddr & 0xffff, HD64461_BBTDSARL);
+	fb_writew(daddr >> 16, HD64461_BBTDSARH);
+	if (mask_addr) {
+		maddr += mask_addr;
+		fb_writew(maddr & 0xffff, HD64461_BBTMARL);
+		fb_writew(maddr >> 16, HD64461_BBTMARH);
+	}
+	hitfb_accel_start(truecolor);
+}
+
+static void hitfb_fillrect(struct fb_info *p, const struct fb_fillrect *rect)
+{
+	if (rect->rop != ROP_COPY)
+		cfb_fillrect(p, rect);
+	else {
+		fb_writew(0x00f0, HD64461_BBTROPR);
+		fb_writew(16, HD64461_BBTMDR);
+
+		if (p->var.bits_per_pixel == 16) {
+			fb_writew(((u32 *) (p->pseudo_palette))[rect->color],
+				  HD64461_GRSCR);
+			hitfb_accel_set_dest(1, rect->dx, rect->dy, rect->width,
+					     rect->height);
+			hitfb_accel_start(1);
+		} else {
+			fb_writew(rect->color, HD64461_GRSCR);
+			hitfb_accel_set_dest(0, rect->dx, rect->dy, rect->width,
+					     rect->height);
+			hitfb_accel_start(0);
+		}
+		hitfb_accel_wait();
+	}
+}
+
+static void hitfb_copyarea(struct fb_info *p, const struct fb_copyarea *area)
+{
+	hitfb_accel_bitblt(p->var.bits_per_pixel == 16, area->sx, area->sy,
+			   area->dx, area->dy, area->width, area->height,
+			   0x00cc, 0);
+	hitfb_accel_wait();
+}
+
+static int hitfb_pan_display(struct fb_var_screeninfo *var,
+			     struct fb_info *info)
+{
+	int xoffset = var->xoffset;
+	int yoffset = var->yoffset;
+
+	if (xoffset != 0)
+		return -EINVAL;
+
+	fb_writew(yoffset, HD64461_LCDCBAR);
+
+	return 0;
+}
+
+int hitfb_blank(int blank_mode, struct fb_info *info)
+{
+	unsigned short v;
+
+	if (blank_mode) {
+#ifdef MACH_HP600
+		sh_dac_disable(DAC_LCD_BRIGHTNESS);
+		v = fb_readw(HD64461_GPBDR);
+		v |= HD64461_GPBDR_LCDOFF;
+		fb_writew(v, HD64461_GPBDR);
+#endif
+		v = fb_readw(HD64461_LDR1);
+		v &= ~HD64461_LDR1_DON;
+		fb_writew(v, HD64461_LDR1);
+
+		v = fb_readw(HD64461_LCDCCR);
+		v |= HD64461_LCDCCR_MOFF;
+		fb_writew(v, HD64461_LCDCCR);
+
+		v = fb_readw(HD64461_STBCR);
+		v |= HD64461_STBCR_SLCDST;
+		fb_writew(v, HD64461_STBCR);
+	} else {
+		v = fb_readw(HD64461_STBCR);
+		v &= ~HD64461_STBCR_SLCDST;
+		fb_writew(v, HD64461_STBCR);
+#ifdef MACH_HP600
+		sh_dac_enable(DAC_LCD_BRIGHTNESS);
+		v = fb_readw(HD64461_GPBDR);
+		v &= ~HD64461_GPBDR_LCDOFF;
+		fb_writew(v, HD64461_GPBDR);
+#endif
+		v = fb_readw(HD64461_LDR1);
+		v |= HD64461_LDR1_DON;
+		fb_writew(v, HD64461_LDR1);
+
+		v = fb_readw(HD64461_LCDCCR);
+		v &= ~HD64461_LCDCCR_MOFF;
+		fb_writew(v, HD64461_LCDCCR);
+	}
+	return 0;
+}
+
+static int hitfb_setcolreg(unsigned regno, unsigned red, unsigned green,
+			   unsigned blue, unsigned transp, struct fb_info *info)
+{
+	if (regno >= info->cmap.len)
+		return 1;
+
+	switch (info->var.bits_per_pixel) {
+	case 8:
+		fb_writew(regno << 8, HD64461_CPTWAR);
+		fb_writew(red >> 10, HD64461_CPTWDR);
+		fb_writew(green >> 10, HD64461_CPTWDR);
+		fb_writew(blue >> 10, HD64461_CPTWDR);
+		break;
+	case 16:
+		((u32 *) (info->pseudo_palette))[regno] =
+		    ((red & 0xf800)) |
+		    ((green & 0xfc00) >> 5) | ((blue & 0xf800) >> 11);
+		break;
+	}
+	return 0;
+}
+
+static struct fb_ops hitfb_ops = {
+	.owner		= THIS_MODULE,
+	.fb_setcolreg	= hitfb_setcolreg,
+	.fb_blank	= hitfb_blank,
+	.fb_pan_display = hitfb_pan_display,
+	.fb_fillrect	= hitfb_fillrect,
+	.fb_copyarea	= hitfb_copyarea,
+	.fb_imageblit	= cfb_imageblit,
+	.fb_cursor	= soft_cursor,
+};
+
+int __init hitfb_init(void)
+{
+	unsigned short lcdclor, ldr3, ldvndr;
+	int size;
+
+	if (fb_get_options("hitfb", NULL))
+		return -ENODEV;
+
+	hitfb_fix.smem_start = CONFIG_HD64461_IOBASE + 0x02000000;
+	hitfb_fix.smem_len = (MACH_HP690) ? 1024 * 1024 : 512 * 1024;
+
+	lcdclor = fb_readw(HD64461_LCDCLOR);
+	ldvndr = fb_readw(HD64461_LDVNDR);
+	ldr3 = fb_readw(HD64461_LDR3);
+
+	switch (ldr3 & 15) {
+	default:
+	case 4:
+		hitfb_var.bits_per_pixel = 8;
+		hitfb_var.xres = lcdclor;
+		break;
+	case 8:
+		hitfb_var.bits_per_pixel = 16;
+		hitfb_var.xres = lcdclor / 2;
+		break;
+	}
+	hitfb_fix.line_length = lcdclor;
+	hitfb_fix.visual = (hitfb_var.bits_per_pixel == 8) ?
+	    FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
+	hitfb_var.yres = ldvndr + 1;
+	hitfb_var.xres_virtual = hitfb_var.xres;
+	hitfb_var.yres_virtual = hitfb_fix.smem_len / lcdclor;
+	switch (hitfb_var.bits_per_pixel) {
+	case 8:
+		hitfb_var.red.offset = 0;
+		hitfb_var.red.length = 8;
+		hitfb_var.green.offset = 0;
+		hitfb_var.green.length = 8;
+		hitfb_var.blue.offset = 0;
+		hitfb_var.blue.length = 8;
+		hitfb_var.transp.offset = 0;
+		hitfb_var.transp.length = 0;
+		break;
+	case 16:		/* RGB 565 */
+		hitfb_var.red.offset = 11;
+		hitfb_var.red.length = 5;
+		hitfb_var.green.offset = 5;
+		hitfb_var.green.length = 6;
+		hitfb_var.blue.offset = 0;
+		hitfb_var.blue.length = 5;
+		hitfb_var.transp.offset = 0;
+		hitfb_var.transp.length = 0;
+		break;
+	}
+
+	fb_info.fbops = &hitfb_ops;
+	fb_info.var = hitfb_var;
+	fb_info.fix = hitfb_fix;
+	fb_info.pseudo_palette = pseudo_palette;
+	fb_info.flags = FBINFO_DEFAULT;
+
+	fb_info.screen_base = (void *)hitfb_fix.smem_start;
+
+	size = (fb_info.var.bits_per_pixel == 8) ? 256 : 16;
+	fb_alloc_cmap(&fb_info.cmap, size, 0);
+
+	if (register_framebuffer(&fb_info) < 0)
+		return -EINVAL;
+
+	printk(KERN_INFO "fb%d: %s frame buffer device\n",
+	       fb_info.node, fb_info.fix.id);
+	return 0;
+}
+
+static void __exit hitfb_exit(void)
+{
+	unregister_framebuffer(&fb_info);
+}
+
+module_init(hitfb_init);
+module_exit(hitfb_exit);
+
+MODULE_LICENSE("GPL");